[1] It is endemic to Borneo and inhabits montane forests in Sarawak and Sabah, Malaysia, and Kalimantan, Indonesia.

[2] The first specimen was described by Oldfield Thomas and was part of a zoological collection from northern Borneo obtained by the British Museum of Natural History.

[3] The mountain treeshrew is dark grizzled rufous above with an indistinct black line along the back.

They also consume large quantities of wild fruits and berries, eating them in short bursts.

It is assumed that they extract sugar laden juices and in this way supplement any dietary deficiencies of an arthropod diet.